SKU: 10509776269

ACL Race Series Main Bearings Mitsubishi 4B11T

Sale price$162.00 Regular price$180.00
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

ACL Race Series Main Bearings Mitsubishi 4B11TRace Series Main Engine Bearings by ACL High performance driving demands that you use the best parts. So rely on ACL Race Series performance engine bearings to perform to exacting race standards you expect. They provide the dependability it takes to hold up under higher RPM conditions. The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance trimetal bearings. These ACL Race Series

Race Series Main Engine Bearings by ACL

High performance driving demands that you use the best parts. So rely on ACL Race Series performance engine bearings to perform to exacting race standards you expect. They provide the dependability it takes to hold up under higher RPM conditions. The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance trimetal bearings. These ACL Race Series performance engine bearings go the distance.

ACL Race Series performance engine bearings are manufactured to exacting tolerances with particular attention paid to wall thickness accuracy. This ensures reliable fit and helps maintain consistent clearances.

Features

  • High strength lead-tin-copper overlay plate with reduced thickness
  • Hardened steel backing to assist with bearing retention
  • Layers of nickel barrier and high fatigue strength copper-lead lining
  • Elimination of flash plating on the back of the bearings
  • Increased eccentricity to compensate for bore distortion at high rpm
  • 3/4 grooved Main Bearings to optimize bearing load and oil flow to the conrod bearings
  • Precision Machined to tight consistent wall tolerances
  • Enlarged ID Chamfers on bearing edges to accommodate performance crankshafts.

PLEASE NOTE

ACL RACE Series performance engine bearings do not start out with the silver grey appearance of regular aftermarket bearings, as there is no final silvery tin flash applied to these bearings. A silvery tin finish as applied to other bearings can, under high loading and heat, move with the plate, causing high spots on the back of the shells and distorting the bearings.

Applications

  • Mitsubishi 4B11T

Benefits

  • High Strength and Durability
  • Maintains Consistent Clearances
  • Improved Fatigue Properties
  • Improved Bearing Retention

What's In The Box?

  • 1 - ACL Race Main Bearings Set
  • Necessary Hardware (if applicable)
  • Instructions/Manuals(if applicable)
  • Warranty Information

References

Warranty

ACL Manufacturer Warranty

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 10509776269

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M
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Melissa J.
Draper, US
★★★★★ 5
Elevates your wrist
Color: Right - Black, Size: Large, Color: Right - Black, Size: Large
This is a great tool. No wrist pain day 1. It elevates your wrist to level with the mouse so there’s no backward strain. Takes a little getting use to but well worth no pain.
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Reviewed in the United States on May 5, 2026
S
Verified Purchase
S.S.
Natrona Heights, US
★★★★★ 3
It's hard af.
Color: Right - Grey, Size: Small, Color: Right - Grey, Size: Small
Edit: just realized Amazon sent me a left handed one! I got this one and the g2 or whatever with the strap. The g2 is great. This one is hard though. The edges of the rest thingy. And the edges in the middle where it splits are annoying. Idk if it's a difference in the rubber pads or what. Even if this works for wrist pain, it's not worth it for the palm discomfort.
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Reviewed in the United States on April 14, 2026
S
Verified Purchase
S Wang
Carnegie, US
★★★★★ 5
Ergonomic and effective, but requires adjustment.
Color: Right - White, Size: Large
Bought this for improving wrist posture during long hours at the desk. What I like • The ergonomic design helps reduce wrist strain, especially during extended typing sessions. • The right-handed orientation is comfortable and natural to use. • High-quality build, feels sturdy and durable. What could be better • It takes some time to adjust to the unique design, especially if you’re used to traditional mice. • The size may not be suitable for people with smaller hands. • It could be a bit pricey compared to other ergonomic mice on the market. Bottom line: A great investment for improving wrist posture and reducing strain, but it might not be for everyone due to the learning curve and price. Perfect for users looking to enhance ergonomics, but consider alternatives if you have smaller hands or need a more budget-friendly option.
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Reviewed in the United States on April 20, 2025
M
Verified Purchase
M
Carnegie, US
★★★★★ 1
It’s painful. Not worth it.
Color: Right - Grey, Size: Small, Color: Right - Grey, Size: Small
I hate it. Period. Very strong feelings about it right out of the box. Gave it a few days, and not only do I still hate it but it’s very painful to use. The rubber material is hard and has pressure points that make you come away feeling like you’ve rested your wrist on the edge of a table for too long. I come away more sore using this than not. They only have small and large sizes, I think the small is too small for me? (I’m not sure. I can tell it doesn’t fit well, but I can’t tell if it’s because it’s too small or the shape isn’t right for my wrist). In any event, I am sure the large would be too large and even if they had a medium size I still wouldn’t repurchase this. Maybe if you’ve got some meat on your bones it would be more comfortable but as you can see, I am a very thin person and this is pressing on all the wrong places. I also feel like the center valley part contributes to carpal tunnel pain because the very firm edges of each side rested right in that area, not offering any support to the valley of the wrist, and therefore creating pressure to that nerve center and the ligaments. I don’t know why they chose this material, it’s too firm. Also, I think a better design would be a little tab from the center of it sticking out and then attaching to the bottom of the mouse so that both mouse and the wrist “support” worked as one unit when moving the mouse around. I often found that I didn’t drag the wrist piece with my mouse well and that it caused even more issues. If it were comfortable I would have made a little tab myself and connected the mouse and the wrist rest together, but as it’s extremely not even remotely comfortable I’m not bothering and I’ve already started the return process.
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Reviewed in the United States on November 13, 2024
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Verified Purchase
Jessica
Boise, US
★★★★★ 5
Quality Product, Definitely Recommend
Size: 17.2"L x 3.15"W x 0.78"H, Color: Black Walnut, Size: 17.2"L x 3.15"W x 0.78"H, Color: Black Walnut
Looks and feels great. Amazingly smooth, and well-crafted. It fits the length of my keyboard, and has quality grippers on the base to prevent sliding. Was actually really pleased with it.
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Reviewed in the United States on September 15, 2025

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